diff --git a/NEWS b/NEWS
index 324f054e1..dbf780524 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,7 @@
 ver 0.15.3 (2009/??/??)
 * output:
   - fix stuttering due to uninitialized variable
+* update: don't re-read unchanged container files
 
 
 ver 0.15.2 (2009/08/15)
diff --git a/src/update.c b/src/update.c
index bdf84ce36..593198cb9 100644
--- a/src/update.c
+++ b/src/update.c
@@ -502,7 +502,8 @@ update_regular_file(struct directory *directory,
 	{
 		struct song* song = songvec_find(&directory->songs, name);
 
-		if (plugin->container_scan != NULL)
+		if (!(song != NULL && st->st_mtime == song->mtime) &&
+			plugin->container_scan != NULL)
 		{
 			if (update_container_file(directory, name, st, plugin))
 			{